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19 April, 11:38

1) A sound wave with a frequency of 300 hertz is traveling through a medium at a speed of 320 meters/second. What is its wavelength?

2) A sound wave has a wavelength of 0.450 meters. If its speed in cold air is 330 meters/second, what is the wave's frequency?

a. 0.890hertz

b. 100hertz

c. 230hertz

d. 733

+3
Answers (1)
  1. 19 April, 13:59
    0
    1. The wavelength is the ratio of the wave's speed to its frequency in hertz or 1/s. This is shown below,

    λ = s / f = (320 m/s) / (300 1/s) = 1.07 m

    The wavelength is approximately 1.07 m.

    2. The frequency is the ratio between speed and the wavelength,

    f = (330 m/s) / 0.45 m = 733.33 hertz
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Home » Physics » 1) A sound wave with a frequency of 300 hertz is traveling through a medium at a speed of 320 meters/second. What is its wavelength? 2) A sound wave has a wavelength of 0.450 meters.
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